Which sound to select?

[ortep1]

I have the following options for sound and subtitle to select:

i need to run the audio through HDMI (via a media player) with the option to send 5:1 via the optical too, do I just check them all? Is there a summary out there of all the different audio choices?

Audio
LPCM 3/2+1 English
DD 3/2+1 English
DD 2/0 English

Subtitles
English
English

[setarip_old]

Safe bet would be the second audio option (Third one is almost surely "Director's commentary")...